Home / 119,969.87-165,558.66-66,257.15

Finding the Fourth Proportional to 119,969.87, 165,558.66 and 66,257.15

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Solution

The fourth proportional to 119,969.87, 165,558.66 and 66,257.15 is: 91,435.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,969.87 : 165,558.66 = 66,257.15 : x
  2. Step 2: Convert to fraction form
    119,969.87/165,558.66 = 66,257.15/x
  3. Step 3: Cross multiply
    119,969.87x = 165,558.66 × 66,257.15
  4. Step 4: Simplify right side
    119,969.87x = 10,969,444,969.42
  5. Step 5: Solve for x
    x = 10,969,444,969.42/119,969.87
  6. Step 6: Final answer
    x = 91,435.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.